/*

* graph.h

*

* This file is part of PlotterController project.

* https://github.com/berk76/plottercontroller

*

* PlotterController is free software; you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation; either version 3 of the License, or

* (at your option) any later version. <http://www.gnu.org/licenses/>

*

* Written by Jaroslav Beran <jaroslav.beran@gmail.com>, on 10.1.2014

*/

#ifndef _GRAPH_H

#define _GRAPH_H

typedef struct {

double x;

double y;

} D_POSITION;

#ifndef M_PI

#define M_PI 3.14159265358979323846 /* pi */

#endif

#ifndef M_PI_2

#define M_PI_2 1.57079632679489661923 /* pi/2 */

#endif

/* Move Absolute */

extern void xy_ma(PRINTER *p, int x, int y);

/* Move Relative */

extern void xy_mr(PRINTER *p, int x, int y);

/* Vector Absolute */

extern void xy_va(PRINTER *p, int x, int y);

/* Vector Relative */

extern void xy_vr(PRINTER *p, int x, int y);

/* Point Absolute */

extern void xy_pa(PRINTER *p, int x, int y);

/* Point Relative */

extern void xy_pr(PRINTER *p, int x, int y);

/* Origin */

extern void xy_og(PRINTER *p, int x, int y);

/* Circle */

extern void xy_cr(PRINTER *p, int r);

/* Arcus */

extern void xy_ar(PRINTER *p, int r, double start_arc, double end_arc);

/* Home */

extern void xy_hm(PRINTER *p);

/* Set Velocity (0 - 9) */

extern void xy_vs(PRINTER *p, int v);

/* Transforms position */

extern D_POSITION _transform_position(double x, double y, double angle);

#endif